JP4507037B2 - Broadcast information management apparatus and broadcast information management method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a broadcast information management device and a broadcast information management method, and more particularly, to a broadcast information management device and a broadcast information management method that enable accurate preference information to be registered without causing a user to perform complicated operations. .
[0002]
[Prior art]
Recently, in addition to terrestrial broadcasts, BS (Broadcasting Satellite) broadcasts and CS (Communication Satellite) broadcasts are becoming widespread, so that an extremely large number of programs (contents) are broadcast compared to terrestrial broadcasts. It has become. However, with the increase in the number of channels, it is considered that it becomes difficult for viewers to find content that matches their own preferences from a very large number of broadcast programs. Therefore, there is a need for a technology that supports selection of content to be viewed or recorded based on viewer preference information.
[0003]
In order to provide various services to the user by using the preference information of the user who views the broadcast program, first, whether the user viewing the program is interested in the content, or It is necessary to investigate what point the user is interested in and what kind of content is being viewed.
[0004]
Conventionally, in order to know the user's preference (interest, interest, etc.), for example, the user himself / herself selects what the user is interested in from various keywords (content genre, performer, region, event, etc.) Or automatically registering data (or part of the data) related to the content viewed by the user as preference information, or whether the user is interested in the content being viewed. It has been made to judge the user's preference by using the method and inputting the data related to the content and the information indicating whether the user has an interest or not.
[0005]
[Problems to be solved by the invention]
However, when the user selects and registers the keyword himself, if he tries to obtain more detailed preference information, the number of keywords becomes enormous, and the user matches his own preference. It becomes difficult to select keywords. In addition, when keywords are classified and prepared, particularly when the keyword has a hierarchical structure and has several display windows, the user who selects and registers the preference information can change the classification. If the method is not understood, it is difficult for the user to search for and select a keyword that matches his / her preference from the classification by following the keyword hierarchical structure.
[0006]
Also, when data relating to content viewed by the user is automatically captured as preference information, or when data relating to content and information indicating whether there is an interest input by the user are used, for example, the user performs a specific appearance. If the user is watching the content for the purpose of the user, but does not like the content, the preference information may not be registered.
[0007]
The present invention has been made in view of such a situation, and enables accurate preference information to be registered without requiring a user to perform complicated operations.
[0008]
[Means for Solving the Problems]
  Broadcast information management apparatus broadcast of the present invention,The acquisition means for acquiring information related to broadcast content, the extraction means for extracting a keyword related to a specific broadcast content from the information acquired by the acquisition means, and the classification at the time of acquisition of the keyword extracted by the extraction means are different. Based on the control of the classification means for classifying into two or more classifications, the display control means for classifying the keywords based on the classification by the classification means and displaying them in a selectable state, and the display control means Recording control means for controlling the keyword selected by the user from among the displayed keywords to be recorded as user preference information.
[0009]
The specific broadcast content can be a broadcast content being viewed at that time.
[0010]
  What is specific broadcast content?It can be broadcast content for which a recording instruction or a recording reservation instruction has been performed.
[0011]
  Classification means includeThe keywords extracted by the extracting means can be classified into three categories: program type, program material, and others.
[0013]
  An arithmetic means for performing a weighting operation on the keyword based on the number of registrations of the keyword can be further provided, and the recording control means can be controlled to record the calculation result by the arithmetic means together with the preference information.
[0014]
  The broadcast information management method of the present invention includes:An acquisition step for acquiring information related to broadcast content, an extraction step for extracting a keyword related to a specific broadcast content from the information acquired by the processing of the acquisition step, and a keyword extracted by the processing of the extraction step A classification step for classifying into two or more classifications different from the classification, a display control step for controlling the keywords to be classified based on the classification by the processing of the classification step, and to be displayed in a selectable state, and display control A recording control step for controlling the keyword selected by the user from the keywords displayed by the processing of the step to be recorded as the user preference information.
[0015]
  In the broadcast information management apparatus and the broadcast information management method of the present invention,Information related to broadcast content is acquired, keywords from specific broadcast content are extracted from the acquired information, and the extracted keywords are classified into two or more categories different from the classification at the time of acquisition, and are selected. A keyword displayed in a possible state and selected by the user from the displayed keywords is recorded as user preference information.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is a block diagram illustrating a configuration example of the hard disk recorder 1. The hard disk recorder 1 can record a large number of videos on an HDD (Hard Disk Drive) 27 having a huge storage capacity. The hard disk recorder 1 can be mounted as an AV device and can be configured integrally with a television receiver such as a set top box (STB).
[0018]
Broadcast waves received by an antenna (not shown) are supplied to the tuner 11. The broadcast wave is based on a predetermined format, and may include, for example, EPG (Electronic Program Guide) data. The broadcast wave is not particularly distinguished from satellite broadcast wave, terrestrial wave, cable, or radio.
[0019]
Based on the control of the CPU 22, the tuner 11 tunes a broadcast wave of a predetermined channel, that is, selects a channel, and outputs received data to the demodulation unit 12. It should be noted that the configuration of the tuner 11 can be changed or expanded as appropriate depending on whether the transmitted broadcast wave is analog or digital. The demodulation unit 12 demodulates the digitally modulated reception data and outputs it to the separation unit 13.
[0020]
For example, when the broadcast to be received is a digital satellite broadcast, the digital data received by the tuner 11 and demodulated by the demodulator 12 is multiplexed with AV data compressed by the MPEG2 system and broadcast data. It is a transport stream. The former AV data is video data and audio data constituting the broadcast content body, and the latter broadcast data includes content description data (for example, EPG data) attached to the broadcast content body.
[0021]
The separation unit 13 separates AV description data and content description data associated with the content, such as EPG data, from the demodulated reception data. AV data is output to the decoder 14. The content description data is input to the user preference information generation unit 28 via the bus 20, and necessary keywords are extracted in the user preference information generation unit 28, and the bus 20 and the HDD interface (I / F (Interface)) 26 are extracted. Is stored in the content description data storage unit 63 (FIG. 2) inside the HDD 27.
[0022]
The decoder 14 compresses the AV data supplied from the separation unit 13 into compressed video data and compressed data in accordance with a control signal input from the CPU 22 when the user instructs the real-time output of the received content. Separated into audio data. The separated audio data is decoded by PCM (Pulse Code Modulation) and then output to the speaker 32 via the mixer (MUX) 16. The separated video data is decompressed and then supplied to the composer 18.
[0023]
When the user instructs the user to record the received content on the HDD 27 (that is, when the recording of the content is instructed), the decoder 14 performs the AV data before separation according to the control signal input from the CPU 22. Are output to the HDD 27 via the bus 20 and the HDD interface 26.
[0024]
The decoder 14 inputs AV data from the HDD 27 via the HDD interface 26 and the bus 20 in accordance with a control signal input from the CPU 22 when the user instructs the reproduction of the content recorded in the HDD 27. Are separated into compressed video data and compressed audio data, which are output to the composer 18 or the mixer 16, respectively.
[0025]
A RAM (Random Access Memory) 15 can store the work data performed by the decoder 14.
[0026]
The composer 18 synthesizes the video data input from the decoder 14 and the image data input from the graphic processing controller 19 as necessary, and outputs them to the display 33. The display 33 displays (reproduces) the video signal supplied from the composer 18. The speaker 32 outputs the audio signal supplied from the mixer 16.
[0027]
The U / I (user interface) control unit 17 is a module that processes an input operation from the user. For example, when the user operates the remote commander 31 including operation buttons or switches, the infrared light emitting unit An operation signal (IR signal) emitted from (not shown) is received by the light receiving unit 17 a and output to the CPU 22 via the bus 20.
[0028]
The CPU 22 is a main controller that controls the operation of the entire hard disk recorder 1 and executes various applications on a platform provided by an operating system (OS). For example, the CPU 22 controls the tuner 11, demodulator 12, separator 13, decoder 14, HDD 27, etc. based on the operation signal input from the remote commander 31 via the U / I controller 17 and the bus 20. As a result, the content is recorded or reproduced.
[0029]
The HDD 27 is a random-accessible external storage device that can store programs and data in a file format of a predetermined format, and has a large capacity of, for example, several tens GB (or 100 GB or more). The HDD 27 is also connected to the bus 20 via the HDD interface 26, and receives broadcast content or content description data from the decoder 14, the user preference information generation unit 28, or the communication control unit 21. The information is received and recorded, and the recorded data is output as necessary.
[0030]
The HDD 27 has a content description data storage unit 63 (FIG. 2) therein, and records input content description data. The content description data stored in the content description data storage unit 63 is read into the CPU 22 or the user preference information generation unit 28 via the bus 20 as necessary. Thereby, the CPU 22 or the user preference information generation unit 28 executes a predetermined process according to a predetermined application, for example, by reading out a keyword related to the content being viewed from the HDD 27 and supplying it to the graphic processing controller 19. 4 can be used to create data corresponding to a preference information registration window to be described later.
[0031]
The graphic processing controller 19 is a dedicated controller that generates image data, and has a high-definition drawing function equivalent to, for example, SVGA (Super Video Graphic Array) or XGA (eXtended Graphic Array). For example, the graphic processing controller 19 generates a GUI (Graphical User Interface) operation screen on which a user can input various settings and data of a preference information registration window described later with reference to FIG.
[0032]
The communication control unit 21 controls wired communication using a telephone line or a cable. Broadcast content or EPG data is exchanged by communicating with a server system (not shown) via the communication control unit 21. The broadcast content input to the communication control unit 21 is input to the separation unit 13 via the bus 20 and processed in the same manner as the broadcast data input via the tuner 11 and the demodulation unit 12.
[0033]
Further, by communicating with an external device via the communication control unit 21, it is possible to receive content description data related to content that does not include EPG data, such as terrestrial broadcasting. The content description data input to the communication control unit 21 is input to the user preference information generation unit 28 via the bus 20 and necessary keywords are extracted. The extracted keywords are stored in the content description data storage unit 63 of the HDD 27 via the bus 20 and the HDD interface 26.
[0034]
A RAM (Random Access Memory) 23 is a writable volatile memory used for loading an execution program of the CPU 22 and writing work data of the execution program. A ROM (Read Only Memory) 24 is a read-only memory for storing a self-diagnosis / initialization program executed when the power of the hard disk recorder 1 is turned on, a control code for hardware operation, and the like.
[0035]
An IEEE (Institute of Electrical and Electronics Engineers) 1394 interface (I / F) 25 is a serial high-speed interface capable of transmitting and receiving data of about several tens of MBps. An IEEE1394 video camera 34 is connected to the IEEE1394 port 25a.
[0036]
The user preference information generation unit 28 extracts necessary keywords and the like from content description data, which will be described later with reference to FIG. 3, input from the decoder 14 or the communication control unit 21 via the bus 20, and extracts the extracted keywords. Then, the data is output to the content description data storage unit 63 of the HDD 27 via the bus 20. Further, the user preference information generation unit 28 extracts necessary keywords from the content description data storage unit 63 based on a signal indicating a user operation input from the U / I control unit 17 via the bus 20. By outputting to the graphic processing controller 19 via the bus 20, data corresponding to a preference information registration window described later with reference to FIG. 4 is generated and displayed on the display 33. Further, the user preference information generation unit 28 refers to the preference information registration window from the U / I control unit 17, receives a keyword registered by the user, performs weighting calculation, and records the calculation result.
[0037]
FIG. 2 is a block diagram illustrating a configuration of the user preference information generation unit 28 of FIG. In practice, data is exchanged via the bus 20 in the exchange of data between the user preference information generation unit 28 and each unit, but in FIG. 2, the bus 20 is omitted. .
[0038]
The keyword extraction unit 51 extracts a keyword from the content description data input from the separation unit 13 or the communication control unit 21, registers the keyword in the content description data storage unit 63 of the HDD 27, and is input from the keyword holding unit 52. In accordance with the signal, necessary data is read from the content data description part and output to the keyword holding part 52.
[0039]
For example, as shown in FIG. 3, the content description data describes various keywords related to the content. <TVProgram data-id = “1”> indicates that the content ID is 1. <ShortTitle> indicates the title of the content, and <longTitle> indicates the subtitle of the content. <Description> contains a description of the content. <Category> indicates a program type of content such as drama, documentary, variety, and the like. Examples of a keyword indicating a content material include <character> indicating a performer and <place> indicating a place where a program is set. All other keywords are described as <other>.
[0040]
The keyword holding unit 52 is a U / I control unit when the user instructs display of a preference information registration window, which will be described later with reference to FIG. 4, or when a content recording operation (or recording reservation operation) is performed. 17, a control signal for calling a keyword of the corresponding content is generated based on the signal input from 17, output to the keyword extraction unit 51, and the keyword of the corresponding content input from the keyword extraction unit 51 is “ The program is classified into three layers of “program type”, “program material”, and “others”, and is output to the graphic processing controller 19.
[0041]
For example, a user who is viewing the content corresponding to the content description data described with reference to FIG. 3 (the broadcast data may be output in real time or the content recorded in the HDD 27 may be reproduced). However, when the display of the preference information registration window is instructed, the keyword extraction unit 51 receives the content description described with reference to FIG. 3 from the content description data storage unit 63 based on the control signal input from the keyword extraction unit 51. Each keyword described in the data is extracted and output to the keyword holding unit 52. The keyword holding unit 52 classifies the input keywords and outputs them to the graphic processing controller 19.
[0042]
The graphic processing controller 19 generates data corresponding to the preference information registration window 72 based on the content keyword input from the keyword holding unit 52 and outputs the data to the composer 18 via the bus 20. The composer 18 synthesizes the video signal input from the decoder 14 and the data corresponding to the preference information registration window input from the graphic processing controller 19, generates a display screen 71 shown in FIG. 4, and outputs it to the display 33. To display.
[0043]
In the preference information registration window 72, the keywords of the corresponding content are displayed in three layers of “program type”, “program material”, and “others”. That is, the keyword “documentary” is classified and displayed in the program type area 81 in the preference information registration window 72 displayed when viewing the content corresponding to the content description data described with reference to FIG. , Keywords “Miki Suzuki”, “Satoshi Ishii”, “Minoru Yamada”, and “Tibet” are displayed in the program material area 82, which is the second hierarchy, and the keywords “Ethnic” and “Nature” have three It is classified and displayed in the other area 83 which is the hierarchy of the eyes.
[0044]
If there are many types of keywords and not all keywords can be displayed at once in the program type area 81 to the other area 83, the program type area is displayed using the up scroll key 84-1 and the down scroll key 84-2. By scrolling 81 to the other area 83, more keywords can be displayed and made selectable.
[0045]
The preference information registration window 72 is displayed, for example, so that the background of the content is translucent and the content video is seen through so as not to interfere with the video of the content currently being broadcast or reproduced. Alternatively, the remote commander 31 may be able to instruct the display position, the display size, and the like.
[0046]
Note that the method for distinguishing keywords displayed in the preference information registration window 72 and the names of hierarchies are not limited to this, and may be anything that is easy for the user to understand.
[0047]
The user refers to the display screen 71 in FIG. 4 and selects a keyword indicating which point of the currently viewed content or the content that is currently being recorded matches the user's own preference information. The registration window 72 is selected by moving the cursor 91 using a cursor key (not shown) of the remote commander 31 or the like. The selected keyword is displayed separately from other keywords, for example, by being highlighted or surrounded by characters. When the user tries to register the selected keyword, the remote commander 31 is not shown. Press the enter key to determine the keyword to be registered.
[0048]
When the user selects a keyword from the preference information registration window 72, a signal indicating the user's selection is input from the U / I control unit 17 to the keyword holding unit 52. The keyword holding unit 52 outputs the selected keyword as user preference information to the user preference information acquisition unit 62 of the user preference information management unit 53 based on the signal input from the U / I control unit 17.
[0049]
The user preference information acquisition unit 62 has weighting information for preference information therein, performs weighting calculation based on preference information (keyword selected by the user) input from the keyword holding unit 52, and weighting information And the preference information and the calculation result input from the keyword holding unit 52 are output to the user preference information storage unit 61.
[0050]
The user preference information storage unit 61 records the preference information input from the user preference information acquisition unit 62 and the weighting calculation result corresponding to the preference information. The preference information recorded in the user preference information storage unit 61 is read by the CPU 22 as necessary, and is used, for example, when performing automatic recording of content that matches the user's preference.
[0051]
In order to efficiently acquire user preference information, the preference information registration window 72 described with reference to FIG. 4 may be displayed at a timing when the user is considered to be strongly aware of the content. In the present embodiment, when the user instructs display of the preference information registration window 72 during content viewing (whether it is real-time broadcast data or playback of recorded content) When the operation for recording (or recording reservation) is performed, it is considered that the timing when the user is strongly aware of the content (timing suitable for selecting the preference information). A registration window 72 is displayed.
[0052]
Since the preference information registration window 72 displays only the keywords related to the content that the user is currently viewing or the content that is currently being recorded in a hierarchical structure, the user is strongly aware of the corresponding content, The keywords can be displayed in an easy-to-understand manner, so that the user can easily select and register preference information.
[0053]
With reference to the flowchart of FIG. 5, the user preference information acquisition process 1 executed when the user instructs display of the preference information registration window 72 during content viewing will be described.
[0054]
In step S <b> 1, the keyword holding unit 52 determines whether or not a command to display the preference information registration window 72 has been received from the user based on a signal input from the U / I control unit 17. If it is determined in step S1 that the command for displaying the preference information registration window 72 has not been received, the process in step S1 is repeated until it is determined that the command for displaying the preference information registration window 72 has been received.
[0055]
If it is determined in step S1 that an instruction to display the preference information registration window 72 has been received, in step S2, the keyword holding unit 52 generates a control signal for extracting a keyword of the content currently being viewed. To the keyword extraction unit 51. The keyword extraction unit 51 reads the content description data stored in the content description data storage unit 63 of the HDD 27 via the bus 20, extracts the keyword of the currently viewed content, and outputs it to the keyword holding unit 52. .
[0056]
In step S <b> 3, the keyword holding unit 52 classifies the extracted keywords into each hierarchy and outputs them to the graphic processing controller 19 via the bus 20. That is, when the currently viewed content is the content “xx travel” corresponding to the content description data described with reference to FIG. 3, the keyword holding unit 52 classifies the keyword “documentary” into program types, “Miki Suzuki”, “Satoshi Ishii”, “Minoru Yamada” and “Tibet” are classified into the program material that is the second level, and the keywords “Ethnic” and “Nature” are classified into the other level that is the third level. To do.
[0057]
In step S <b> 4, the graphic processing controller 19 receives the input of the classified keyword, generates data corresponding to the preference information registration window 72 described with reference to FIG. 4, and outputs the data to the composer 18 via the bus 20. . The composer 18 synthesizes the data corresponding to the input preference information registration window 72 with the video data of the content input from the decoder 14 to generate the display screen 71 described with reference to FIG. To display.
[0058]
In step S <b> 5, the keyword holding unit 52 determines whether a preference information registration command has been input by the user based on the signal input from the U / I control unit 17 (that is, the user uses the remote commander 31. Whether or not a desired keyword is selected from the keywords displayed in the preference information registration window 72 and determined.
[0059]
If it is determined in step S5 that a preference information registration command has not been input, in step S6, the keyword holding unit 52 reads time information from a timer (not shown), and displays a predetermined time from the display of the preference information registration window 72. It is determined whether or not elapses. If it is determined in step S6 that the predetermined time has not elapsed since the display of the preference information registration window 72, the process returns to step S5, and the subsequent processes are repeated.
[0060]
If it is determined in step S6 that a predetermined time has elapsed since the display of the preference information registration window 72, the keyword holding unit 52 generates a control signal for canceling the display of the preference information registration window 72, and the graphic processing controller 19 output. Since the graphic processing controller 19 stops outputting the data corresponding to the preference information registration window 72 to the composer 18, the preference information registration window 72 is not displayed on the display 33, and the processing ends.
[0061]
If it is determined in step S5 that a preference information registration command has been input, in step S8, the keyword holding unit 52 outputs the keyword instructed to be registered to the user preference information acquiring unit 62, and the process is terminated. .
[0062]
For example, when the user selects the keyword “nature” in the preference information registration window 72 shown in FIG. 4 with the cursor 91 using the remote commander 31 and determines it as a keyword to be registered, the keyword holding unit 52 Based on the signal input from the / I control unit 17, the keyword “natural” is output to the user preference information acquisition unit 62 of the user preference information management unit 53.
[0063]
With reference to the flowchart of FIG. 6, the user preference information acquisition process 2 executed when the user instructs recording of desired content or recording reservation will be described.
[0064]
In step S <b> 11, the keyword holding unit 52 and the CPU 22 determine whether or not a content recording (or recording reservation) request has been received based on a signal input from the U / I control unit 17. If it is determined in step S11 that a content recording (or recording reservation) request has not been received, the processing in step S11 is repeated until it is determined that a content recording (or recording reservation) request has been received.
[0065]
If it is determined in step S11 that a content recording (or recording reservation) request has been received, in step S12, the CPU 22 executes recording of the requested content (or recording reservation).
[0066]
That is, the CPU 22 generates a control signal for selecting a channel designated by the user based on a signal input from the U / I control unit 17 when receiving a recording request for the currently broadcast content. Then, a control signal for outputting the input AV data to the HDD 27 is output to the decoder 14 via the bus 20 and to the decoder 14 via the bus 20. The decoder 14 outputs the AV data input from the separation unit 13 to the HDD 27 via the bus 20 and the HDD interface 26 in accordance with the control signal input from the CPU 22. The HDD 27 stores the input AV data. Further, when receiving a request for recording reservation of content desired by the user, the CPU 22 sets a timer (not shown) based on a signal input from the U / I control unit 17 and broadcasts it at a predetermined time. Various settings for recording the content designated by the user on the HDD 27 in the recording procedure described above are performed.
[0067]
In step S <b> 13, the keyword holding unit 52 generates a control signal for extracting the keyword of the content requested to be recorded based on the signal input from the U / I control unit 17, and sends it to the keyword extraction unit 51. Output. The keyword extraction unit 51 reads the content description data stored in the content description data storage unit 63 of the HDD 27 via the bus 20, extracts the keyword of the content requested to be recorded, and outputs it to the keyword holding unit 52. .
[0068]
Then, in steps S14 to S19, processing similar to that in steps S3 to S8 in FIG. 5 is executed, and the processing ends.
[0069]
5 and 6, the user preference information acquisition unit 62 of the user preference information management unit 53 receives input of user preference information (that is, a keyword selected by the user and instructed to be registered).
[0070]
Next, a process in which the user preference information acquisition unit 62 weights the acquired user preference information and stores it in the user preference information storage unit 61 will be described with reference to the flowchart of FIG.
[0071]
In step S31, the user preference information acquisition unit 62 receives the keyword selected and confirmed by the user, which is output from the keyword holding unit 52 in step S8 of FIG. 5 or step S19 of FIG.
[0072]
In step S32, the user preference information acquisition unit 62 refers to the user preference information stored in the user preference information storage unit 61, and determines whether or not the keyword input in step S31 is new preference information. to decide. If it is determined in step S32 that the input keyword is not new preference information, the process proceeds to step S34.
[0073]
When it is determined in step S32 that the input keyword is new preference information, in step S33, the user preference information acquisition unit 62 sets the input keyword as new preference information as a user preference information storage unit. Write to 61.
[0074]
When it is determined in step S32 that the input keyword is not new preference information, or after the processing in step S33 is completed, in step S34, the user preference information acquisition unit 62 determines, for example, the number of registrations of each keyword. Based on the above, the input keyword weighting calculation is performed.
[0075]
The keyword weighting calculation method is not limited to the number of keyword registrations, and may be calculated using other parameters. For example, assuming that the user's preference changes over time, You may make it calculate using the frequency | count of registration in comparatively near periods, such as the past one month or a half year, without referring the frequency | count of registration of preference information.
[0076]
In step S35, the user preference information acquisition unit 62 writes the calculation result of the weighting in step S34 in the user preference information storage unit 61, and the process is terminated.
[0077]
Through the processing described above, keywords indicating objects such as the user's interests, hobbies, and interests are weighted and recorded based on, for example, the input frequency of the user's preference information. And, since user preference information is distinguished and referred to as what is considered to be strong user preference and what is considered not to be so strong, when performing automatic recording processing based on user preference, etc. Finer control that matches the user's preference is possible.
[0078]
Note that the above-described series of processing can be executed as processing by the CPU 22. In this case, the user preference information generation unit 28 described with reference to FIG. 1 is omitted, and the processing described with reference to FIGS. 5 to 7 is executed by the CPU 22 in FIG. Information stored in the user preference information storage unit 61 is stored in the HDD 27 or the RAM 23, and the processing described with reference to FIGS. 5 to 7 is executed by exchanging information with the CPU 22 via the bus 20. It is what is done.
[0079]
【The invention's effect】
  According to the broadcast information management apparatus and the broadcast information management method of the present invention.,When the user is strongly aware of the corresponding broadcast content, only necessary keywords can be displayed in an easy-to-understand manner, and accurate preference information can be registered without requiring the user to perform complicated operations. .
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a hard disk recorder to which the present invention is applied.
FIG. 2 is a block diagram illustrating a configuration of a user preference information generation unit in FIG. 1;
FIG. 3 is a diagram illustrating an example of content description data.
FIG. 4 is a diagram for explaining a preference information registration window;
FIG. 5 is a flowchart for explaining user preference information acquisition processing 1;
FIG. 6 is a flowchart for explaining user preference information acquisition processing 2;
FIG. 7 is a flowchart for explaining user preference information storage processing;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hard disk recorder, 13 Separation part, 17 U / I control part, 19 Graphic processing controller, 22 CPU, 27 HDD, 28 User preference information generation part, 33 Display, 51 Keyword extraction part, 52 Keyword holding part, 53 User preference information Management unit, 61 user preference information storage unit, 62 user preference information acquisition unit, 63 content description data storage unit

Claims (6)

An acquisition means for acquiring information relating to broadcast content;
Extraction means for extracting a keyword related to a specific broadcast content from the information acquired by the acquisition means ;
Classification means for classifying the keywords extracted by the extraction means into two or more classifications different from the classification at the time of acquisition ;
Display control means for controlling the keywords to be classified based on the classification by the classification means and displayed in a selectable state ;
The display keywords selected by the user from among the keywords displayed under the control of the control means, the broadcast information management apparatus and a recording control means for recording as the preference information of the user. The specific broadcast content is the broadcast content being viewed at that time
The broadcast information management apparatus according to claim 1. The specific broadcast content is the broadcast content for which a recording instruction or a recording reservation instruction has been performed.
The broadcast information management apparatus according to claim 1. The classification means classifies the keywords extracted by the extraction means into three categories : program type, program material, and others.
The broadcast information management apparatus according to claim 1. A calculation means for performing a weighting calculation on the keyword based on the number of registrations of the keyword ;
The recording control means controls to record the calculation result by the calculation means together with the preference information.
The broadcast information management apparatus according to claim 1. An acquisition step of acquiring information about the broadcast content;
An extraction step of extracting the keyword related to a specific broadcast content from the information acquired by the processing of the acquisition step;
A classification step of classifying the keywords extracted by the processing of the extraction step into two or more classifications different from the classification at the time of acquisition ;
A display control step for controlling the keywords to be classified based on the classification by the processing of the classification step and to be displayed in a selectable state ;
A broadcast information management method comprising: a recording control step for controlling a keyword selected by a user from the keywords displayed by the display control step to be recorded as the user preference information .

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